1,5-Bis(4-dithiocarboxylate-5-hydroxypyrazolyl)pentane derivatives of 5-pyrazolones
作者:Carolina Avila、María Fernanda Flores、Aurora Molinari、Alfonso Oliva
DOI:10.1002/jhet.5570420419
日期:2005.5
lin-5-one 1c react with carbon disulfide and 1,5-dibromopentane in the presence of sodium acetate in dimethylfor-mamide or n-butyllithium in tetrahydrofuran to afford 1,5-bis(4-dithiocarboxylate-5-hydroy-pyrazolyl)pentane derivatives 6b-c.
在乙酸钠存在下,3-甲基-1-苯基-2-吡唑啉-5-酮1b和1-十二烷基-3-甲基-2-吡唑啉酮5-one 1c与二硫化碳和1,5-二溴戊烷反应在四氢呋喃中用二甲基甲酰胺或正丁基锂制得1,5-双(4-二硫代羧酸酯-5-羟基吡唑基)戊烷衍生物6b-c。